Buffing wheel and method of making same



Oct. 16, 1951 LYON 2,571,146

BUFFING WHEEL AND METHOD OF MAKING SAME Filed Sept. 12, 1950 2 SHEETSSHEET 1 O ;t. 16, 1951 ca. A. LYON 7 2,571,146

BUFFING WHEEL AND METHOD OF MAKING SAME Filed Sept. 1 1950 2 sums-swam 2 Patented Oct. 16, 1951 UNITED STATES PATENT OFFICE BUFFING WHEEL AND METHOD OF MAKING SAME 8' Claims.

This invention relates to abrading wheels and more particularly to polishing or buffing wheels.

An object of this invention is to provide an improved abrading or buffing wheel as well as a novel way of applying the bufling material thereto. t;

Another object of the invention is to provide an improved buffing wheel and a novel way of spirally winding strip buffing material under tension thereon. Yet another object of the invention relates to the provision in a buffing wheel of novel means for attaching a spiral buff strip thereto and for tensioning the same as well as holding the same under tension on the wheel.

In accordance with the general features of this invention there is provided in a buffing wheel structure a circular member having a generally spiral groove therein, a cable wound in the groove and having projecting radially from it a strip of bufiing material wound with the cable in the groove, and means for applying and holding the cable and strip to and on the wheel under tension.

In accordance with other features of the invention there is provided in a bufifing wheel structure a circular member having a generally spiral groove therein, a cable wound in the'groove and having projecting radially from it a strip of buffing material wound with the cable in the groove, the cable having on at least one end thereof a terminal inserted in a slot in an end of the member and detachably held therein, the other end of the cable having a similar terminal adapted to be locked in another slot in the memher but provided with means for attaching it to a tensioning cable in the winding of the strip on the wheel.

Other objects and features of this invention will more fully appear from the following detailed description taken in connection with the accompanying drawings which illustrate a single embodiment thereof, and in which:

Figure 1 is an end view taken from one side of a wheel embodying the features of this invention;

Figure 2 is a view similar to Figure 1 but taken from the other side of the wheel;

Figure 3 is a somewhat diagrammatic view showing how a cable with buffed material thereon can be spirally wound under tension in the groove of the wheel;

Figure 4 is a horizontal cross sectional view taken through the wheel in the direction of'its axis; t

Figure 5 is a fragmentary cross-sectional view taken on the line VV of Figure 4 looking in the direction indicated by the arrows and showing how one of the cable terminals is held in a slot in an end of the wheel; and

Figure 6 is an enlargement of a portion of Figure 3 showing how a terminal on one end of the cable may be interlocked with a terminal on a tensioning cable used in the winding of the cable and buffing strip on the wheel.

As shown on the drawings:

The reference character I0 (Figure 4) designates generally the core or wheel body of my buffing wheel which has a groove ll of generally spiral arrangement. It will be noted that the peripheral contour of the groove portion H is predetermined to conform with the cross-section of the article to be buffed so that after the buiilng material, to be hereinafter described, is in th groove, its surface will be generally that of the article to be engaged.

The body It includes end flanges I2 and I3 and a central shaft bore [4 having a spline or keyw'ay for tying the body to the shaft which is to rotate the wheel.

The end flange l3 has a segment shaped slot 16 (Figures 4 and 5) and the end flange l2 has a similar slot [1 (Figures 2 and 4).

In addition, the end flange I3 has transverse cap screws or bolt holes [8 which extend transversely of the slot (Figures 4 and 5). The other flan I2 has similar screw or bolt holes l9 (Figures 2 and 4). A wire cable 20 is adapted to be wound on the groove I I. This cable has wrapped around and secured to it a continuous strip 21 of wrapped or folded bufiing material which may be made of any suitable cloth such, for example, as cotton drill material.

One end of the cable, as best shown in Figure 5, has firmly attached to it a sleeve type cable terminal 22 with an enlarged flattened eyelet end 23. This terminal 22 is adapted to be inserted in the slot l6 and is held in the slot by means of a bolt or screw 24 extending through the end 23 in one of the holes l8. A series of these holes I8 is provided so that terminal 22 can be selectively adjusted to any one of a number of positions in the pie-shaped slot [6. The cable 29 then-extends over a kinking shoulder 20a onto the periphery of the body If]. V

The other end of the cable 20 (Figures 3- and 6) has a similar sleeve type terminal 25 with an enlarged flattened eyelet end 26 formed with a lug or ear 2! for interlocking engagement with a similar lug or ear 29 on asleeve-terminal fl of a tensioning cable 30 in the winding of the cable on the wheel.

As best shown in Figure 3, after the terminal 22 has been fastened in place in the wheel flange 13, the other terminal 25 is engaged with the terminal 28 of the tensioning cable 30. This tensioning cable 30 may pass over a pulley 3| and may be weighted at 32. While I have shown a weight 32 forputting the cable 30 under tension, any other suitable tensioning means may be used for this purpose.

In wrapping the cable and bufiing material on the wheel, the wheel is progressively turned counterclockwise, as shown in Figure 3, resulting in the cable progressively entering the spiral groove I l. During this entire winding operation the cable and buffing strip 2| are under tension so that the same is wound tightly'in the groove.-

After the cable and buffing strip have been completely wound on the wheel, the terminal 25 is disengaged from the tensioning cable terminal 28 and is inserted in the slot ll of end flange l2 where it can be bolted to the wheel by means of a bolt or screw 33. It will be noted that at this end there is also a series of holes [9 so that the terminal end 25 can be adjustably secured in position by the cooperating cap screw or bolt 33 passing through one of these holes 19. From the foregoing it is clear that I have provided not only a novel buffing wheel with novel means for fastening the ends of the cable in place, but in addition have provided a novel way of applying the cable and buffing strip carried thereby to the wheel.

It will be understood that modifications and variations may be effected without departing from the scope of the novel concepts of the present invention.

I claim as my invention:

1. In a bufiing wheel structure, a circular member having a generally spiral groove therein, a cable wound in said groove and having projecting radially from it a strip of buffing material wound with said cable in said groove, said cable having on at least one end thereof a terminal, and said member having a slot in one end in which the terminal fits, fastening means extending into said member transversely of said slot for attaching said terminal to said member in said slot, the other end of said cable having a second terminal with a shouldered ear for engagement with a similar terminal on another cable for applying tension to the cable during winding on said member, and means for attaching said other end terminal in a slot in another end of said circular member.

2. In a bufling wheel structure, a circular member having a generally spiral groove therein, a cable wound in said groove and having projecting radially from it a strip of buffing material wound with said cable in said groove, said cable having on at least one end thereof a terminal and said member having a slot in one end in which the terminal fits, fastening means extending into said member transversely of said slot for attaching said terminal to said member in said slot, the other end of said cable. having a second terminal with a shouldered ear for engagement with a similar terminal on another cable for applying tension to the cable during winding on said member, means for attaching saidcircular member. v M

3. In a bufiing wheel structure, a circular mem ber having a generally spiral groove therein, a cable wound in said groove and having projecting radially from it a strip of buffing material wound with said cable in said groove, said cable having on at least one end thereof a terminal, and said member having a slot in one end in which the terminal fits, fastening means extending into said member transversely of said slot for attaching said terminal to said member in said slot, the other end of said cable having a second terminal with a shouldered ear for engagement with a similar terminal on another cable for applying tension to the cable during winding on said member, means for attaching said other end terminal in a slot in another end of said circular member, the groove portion of said member having an irregular peripheral contour corresponding with the cross-sectional shape of the object to be buffed and whereby the periphery of the wound strip is given a corresponding shape.

4. In a bufiing wheel structure, a circular member having an irregular peripheral surface corresponding in cross section to that of an object to be buffed and having a generally spiral groove in said surface, a cable wound in said groove and having projecting radially from it a strip of buffing material wound with said cable tightly in said groove, said cable having end terminals detachably fastenable in end recesses in opposite ends of said member, and means for adjustably securing said terminals in said recesses with said cable under tension and said buff strip tightly held by the cable in the groove.

5. In a method of making a bufling wheel comprising a circular wheel member with a peripheral surface of irregular contour corresponding in cross section generally to that of the object to be buffed and having a cable, with a bufling strip projecting therefrom, in a generally spiral groove in said surface, the steps of attaching one end of the cable to an end of the wheel member in a position to enter the spiral groove of the member, progressively winding the cable under tension in the groove to bind it and the buff strip thereon in the groove and adjustably fastening the other end of the cable to the wheel member so as to hold the cable on the wheel with the wound strip conforming in cross section to the contour of the surface of said member.

6. In a bufling wheel structure, a circular rotary member having an outer peripheral surface' of irregular cross-section corresponding generally in cross-section to that of the surface of an object to be buffed and formed to receive a spirally wound cable thereon, a continuous cable spirally wound under tension on said surface from one end of said member to its opposite end and having projecting radially from it a continuous strip of buffing material wound with said cable tightly on said surface, said cable having end terminals detachably fastened at said opposite ends of said member, and means for adjustably securing at least one of said terminals at one of said ends of said member to hold said cable under tension with said buff strip tightly pressed by the cable against said peripheral surface of said member.

'7. In a wheel structure for treating an irregular surface of the character described, an irregular surfaced core substantially complementary to the profile of the article to be treated and respective end flanges on the core, said core surface having a raised portion intermediately with the opposite faces sloping toward said flanges and defining valleys between theraised portion and said flanges, and a cable having projecting therefrom surface treating material of substantially uniform width throughout the length of the cable and being spirally wound tightly on said core surface so that the outer periphery defined by the treating material conforms in profile to said irregular surface, said sloping surfaces of said raised portion tending to crowd the cable winding toward said end flanges, and said raised portion and said end flanges cooperating to resist longitudinal shifting of the wound cable on said core.

8. In a wheel structure for treating an irregular surface of the character described, a rotary core circular in cross-section but of irregular sinuous peripheral surface substantially complementary in longitudinal cross-section to the profile of an object to be surface treated, a cable wound continuously tightly on said surface and having surface treating material of substantially uniform width throughout the length of the cable projecting radially therefrom and wound tightly with said cable on said irregular surface of the core, said core having a recess therein adjacent one end thereof and defining a shoulder, means anchoring the starting end portion of said cable to said shoulder, and means adjustably securing the other end of said cable to said core with said cable and said material wound tightly on said surface and with the periphery defined by the treating material substantially conforming to said irregular surface of the core.

GEORGE ALBERT LYON.

No references cited. 

